3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i=0;$i<3;++i()) { };
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.29
Fatal error: Can't use function return value in write context in /in/IVnue on line 2
Process exited with code 255.

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181.86 ms | 1387 KiB | 66 Q